(ɪˈkjuːməˌnɪzəm, ˈɛkjʊm-), ecumenicism (ˌiːkjʊˈmɛnɪˌsɪzəm, ˌɛk-) or ecumenicalism
noun
the aim of unity among all Christian churches throughout the world
ecumenicity in American English
(ˌekjuməˈnɪsɪti, -me-, esp Brit ˈikju-)
noun
(in the Christian church)
the state of being ecumenically united, esp. in furthering the aims of the ecumenical movement
Word origin
[1830–40; ecumenic + -ity]This word is first recorded in the period 1830–40. Other words that entered Englishat around the same time include: ante, format, nationalism, stroboscope, walkover-ity is a suffix used to form abstract nouns expressing state or condition. Other wordsthat use the affix -ity include: Latinity, civility, jollity